Signs of Arthritis in Dogs: How to Spot Joint Pain Early

If your dog has started taking the stairs a little more slowly, or hesitating before jumping into the car, you're right to pay attention. Those small changes are often the first signs of arthritis — and because dogs are so good at hiding discomfort, they're easy to miss until the problem is well established.

The good news is that the earlier you notice joint pain, the more you can do to keep your dog comfortable and active. This guide walks through what arthritis actually is, the early signs to watch for, which dogs are most at risk, and the practical steps that make the biggest difference.

What is arthritis in dogs?

Arthritis — most commonly osteoarthritis — is the gradual wearing down of the smooth cartilage that cushions a joint. As that cushioning thins, bone moves against bone, the joint becomes inflamed, and movement starts to hurt. It's a progressive condition, which means it tends to worsen over time, but a thoughtful care plan can slow that progression and ease the day-to-day discomfort.

It's far more common than many owners realise. Many senior dogs develop some degree of arthritis, and larger breeds, overweight dogs, and dogs with past joint injuries often show signs earlier than expected.

The early signs owners often miss

Dogs rarely cry out when their joints ache. Instead, they quietly change how they move and behave. Watch for:

• Stiffness after rest, especially first thing in the morning or after a long nap, that eases once they warm up.
• Reluctance with stairs, jumping or the car — pausing, hesitating, or needing a run-up where they used to leap.
• Slowing down on walks, lagging behind, or losing enthusiasm for walks they once loved.
• A change in gait — limping, "bunny-hopping," or shifting weight off a sore leg.
• Licking or chewing at a joint, sometimes leaving the fur stained or thinned over that spot.
• Behaviour changes — more irritability, less interest in play, or wanting to be left alone, which can all be signs of chronic discomfort.
• Muscle loss over the hindquarters as a sore leg gets used less.

Any one of these on its own might be nothing. A pattern of them, especially in an older or larger dog, is worth acting on.

Which dogs are most at risk?

Arthritis can affect any dog, but some are more prone to it:

• Older dogs, as joints naturally wear with age.
• Large and giant breeds, which carry more load through their joints.
• Overweight dogs, where extra kilos mean extra strain on every joint.
• Dogs with previous injuries or developmental conditions such as hip or elbow dysplasia.
• Very active or working dogs, where years of high-impact movement add up.

If your dog falls into one of these groups, it's worth being proactive rather than waiting for obvious limping.

What you can do

Arthritis isn't curable, but it is very manageable. The most effective approach combines several small things rather than relying on any single fix.

See your vet first. A proper diagnosis matters, because limping and stiffness can have other causes. Your vet can confirm what's going on, rule out other problems, and discuss pain relief if it's needed. Never give your dog human pain medication — many are toxic to dogs.

Keep them at a healthy weight. This is one of the single most powerful things you can do. Every extra kilo adds load to already-sore joints, so trimming excess weight often brings noticeable relief.

Keep them moving — gently. Regular, low-impact exercise like steady lead walks and swimming keeps muscles strong and joints mobile. The aim is consistent, moderate activity rather than weekend bursts of high-impact play.

Make home easier. Soft, supportive bedding, ramps instead of jumps, rugs over slippery floors, and raised food bowls all reduce strain and help a stiff dog get around with dignity.

Support the joints nutritionally. Diet and supplements can play a supporting role in joint comfort and mobility. Ingredients such as omega-3 fatty acids and marine-derived compounds like chondroitin are widely used to support cartilage and help maintain healthy, comfortable movement as dogs age.

When to see your vet

Book a check-up if you notice persistent stiffness or limping, a sudden change in mobility, signs of pain when a joint is touched, or any reluctance to do things your dog used to enjoy. Early veterinary input gives you the widest range of options and the best chance of keeping your dog comfortable for years.

The bottom line

Arthritis is common, but a slowing-down dog is not something you simply have to accept. Spotting the early signs, keeping your dog lean and gently active, making a few changes at home, and supporting their joints nutritionally can make a real difference to how well they move and how they feel each day.

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This article is general information and isn't a substitute for veterinary advice. If you're worried about your dog's mobility or comfort, please speak with your vet.